If you look closely, you will see circles overlaid on this idyllic postcard of Vercorin, Switzerland. It's not a Photoshop: These holes are as real as the ones in Emmental cheese. It's a startling optical illusion. 2500-pixel panorama ahead.

Zoom in the image above to see the panorama in full detail

As you can see in the gallery, the circles were placed in segments over different houses around the town. They only become visible from certain vantage points, which should be quite a dizzying experience as you go by. The whole thing is an art installation by Felice Varini, called "Cercle et suite d'éclats." Oh really? Well, cherchez la Vache to you, laeedee. [Varini via Today and Tomorrow via Core77]